Magnetic media design with multiple non-magnetic exchange control layers and graded magnetic sublayers
AssigneeWestern Digital Technologies, Inc.
InventorKai Tang
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AssigneeWestern Digital Technologies, Inc.
InventorKai Tang
Estimating the term…
Magnetic media including a magnetic recording layer structure formed of alternating magnetic recording sublayers and non-magnetic exchange control sublayers. The magnetic recording layer structure may include at least one magnetic recording sublayer formed to include a pair of thin films, with the films having different concentrations of platinum, ruthenium, and/or oxide segregants. That is, the sublayer has a “dual layer” structure. The dual layer structure can provide a gradient in magnetic anisotropy, saturation magnetization, and/or intergranular magnetic exchange coupling across the sublayer. In some examples, the film nearer to the substrate of the magnetic media has a higher platinum concentration than the other film. In one aspect, the magnetic media includes the substrate and the magnetic recording layer structure on the substrate, with the structure including six magnetic recording sublayers. In another aspect, a method of fabricating magnetic media with such structures is provided.
A magnetic medium, comprising:
A magnetic medium, comprising:
A method for fabricating magnetic media, comprising:
Dependencies are inferred from the claim text.